CN219443479U - CBN half counter bore cutter and cutter arbor - Google Patents
CBN half counter bore cutter and cutter arbor Download PDFInfo
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- CN219443479U CN219443479U CN202223551723.XU CN202223551723U CN219443479U CN 219443479 U CN219443479 U CN 219443479U CN 202223551723 U CN202223551723 U CN 202223551723U CN 219443479 U CN219443479 U CN 219443479U
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- counter bore
- half counter
- tool
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Abstract
The utility model belongs to the technical field of CBN cutters, and particularly relates to a CBN half counter bore cutter and a cutter bar; the cutter body is diamond-shaped, a first half counter bore and a second half counter bore are respectively arranged on the left side surface and the right side surface of the cutter body, the first half counter bore and the second half counter bore are positioned at the center of the cutter body and are not communicated, and the first half counter bore and the second half counter bore are round holes or oval holes; the depth of the first half counter bore and the second half counter bore is smaller than 1/3 of the thickness of the cutter body and larger than 1/4 of the thickness of the cutter body; the cutter bar comprises a cutter bar main body, the end part of the cutter bar main body is connected with a cutter head, the top of the cutter head is provided with a cutter pressing plate, the cutter pressing plate is connected with the cutter head through a pressing plate screw, a cutter backing plate is arranged in the lower concave of the end part of the cutter head, and the cutter backing plate is connected with the cutter head through a backing plate screw; the cutter bar is high in overall structure strength, can be stably positioned and fixed through the cutter bar, is not easy to break due to external force in use, and is convenient for processing operation and use of the cutter.
Description
Technical Field
The utility model belongs to the technical field of CBN cutters, and particularly relates to a CBN half counter bore cutter and a cutter bar.
Background
CBN (cubic boron nitride), which is a superhard tool material developed after artificial diamond, is converted from hexagonal boron nitride (Bai Danmo) under high temperature and high pressure, and is nonmetallic boride, the hardness of which is far higher than Gao Sugang and cemented carbide, is far lower than that of diamond, so that the CBN is more suitable for processing materials of the cemented carbide tool which are not moved after the tool is manufactured; the CBN cutter belongs to one of superhard cutters, is manufactured by taking CBN micro powder as a raw material and utilizing the ultra-temperature high-pressure technology under the action of a small amount of bonding agents, and is very suitable for processing materials with hardness more than HRC50 and high wear resistance because of very high hardness of the CBN cutter; the CBN cutter can be used for cutting quenched steel (bearing steel, die steel and the like), cast iron (gray cast iron, spheroidal graphite cast iron, high-chromium cast iron, alloy wear-resistant cast iron and the like), high-speed steel, hard alloy, high-temperature alloy and other materials, and has great advantages in the aspect of ferrous metal processing; CBN cutters are popular in applications at home and abroad, and are particularly suitable for cutting difficult-to-machine material industries, such as automobile manufacturing industries (engines, crankshafts, brake discs, brake drums and the like), mining machinery industries (mortar rolling walls, slurry pumps and the like), bearing gear industries (hub bearings, slewing bearings, wind power bearings, gears and the like), roller industries (cast iron rollers, high-speed steel rollers and the like) and the like; the traditional integral CBN cutter is not provided with holes, or is provided with through holes like a hard alloy cutter, and the cutter without holes is only pressed by a pressing plate when positioned, so that the integral CBN cutter provided with the through holes is not firm, and is hard and brittle because of the integral polycrystalline CBN cutter, and when a workpiece is machined, the cutter blade is easy to crack from a middle hollow part; therefore, the CBN half counter bore cutter and the cutter bar which have high integral structural strength and are convenient to position and fix and convenient for the processing operation and use of the cutter are necessary.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the CBN half counter bore cutter and the cutter bar which have high integral structural strength and are convenient to position and fix and convenient for the processing operation and use of the cutter.
The purpose of the utility model is realized in the following way: the CBN half counter bore cutter comprises a cutter body which is integrally diamond-shaped, wherein a first half counter bore and a second half counter bore are respectively arranged on the left side surface and the right side surface of the cutter body, the first half counter bore and the second half counter bore are positioned at the center of the cutter body and are not communicated, and the first half counter bore and the second half counter bore are round holes or oval holes; the depth of the first half counter bore and the second half counter bore is smaller than 1/3 of the thickness of the cutter body and larger than 1/4 of the thickness of the cutter body.
Further, the included angle of one group of adjacent sides of the diamond-shaped cutter body is 80 degrees.
Further, the distance between two parallel sides of the diamond-shaped cutter body is 12.7mm, four corners of the diamond-shaped cutter body are arc corners, the radius of each corner is 0.4-1.2mm, the thickness of the cutter body is 4-8mm, the depths of the first half counter bore and the second half counter bore are 0.9-2mm, and the diameters of the round holes of the first half counter bore and the second half counter bore are 5-6mm.
Further, the radii of the four arc corners of the diamond-shaped cutter body are 1.2mm, the thickness of the cutter body is 6.35mm, the depths of the first half counter bore and the second half counter bore are 1.7mm, and the diameters of the circular holes of the first half counter bore and the second half counter bore are 5.16mm.
A cutter arbor for fix a CBN half counter bore cutter, it includes the cutter arbor main part, cutter arbor main part end connection has the tool bit, the tool bit top is provided with the cutter clamp plate, the cutter clamp plate pass through clamp plate screw with the tool bit is connected, the recess of tool bit tip is provided with the cutter backing plate, the cutter backing plate pass through the backing plate screw with the tool bit is connected, CBN half counter bore cutter is arranged in on the cutter backing plate, and through the flange embedding that cutter clamp plate bottom set up first half counter bore or second half counter bore are in order to fix the cutter main part.
The utility model has the beneficial effects that: according to the CBN half counter bore cutter, the left side surface and the right side surface of the diamond cutter main body are respectively provided with the first half counter bore and the second half counter bore, the first half counter bore and the second half counter bore are positioned at the center of the cutter main body and are not communicated, the depth of the first half counter bore and the second half counter bore is smaller than 1/3 of the thickness of the cutter main body and is larger than 1/4 of the thickness of the cutter main body, the center of the cutter main body is kept with enough thickness, the structural strength of the cutter main body is ensured, and the center of the cutter main body is not easy to break under the action of external force when the cutter is used for processing operation; the first half counter bore and the second half counter bore are round holes or oval holes, and obvious stress concentration is not easy to occur under the action of external force, so that the cutter is further prevented from being broken from the center; the cutter main body is arranged on a cutter backing plate of the cutter bar, a convex plate arranged at the bottom of the cutter pressing plate is embedded into the first half counter bore or the second half counter bore, and the cutter pressing plate is pressed against the cutter main body by screwing a pressing plate screw, so that the positioning and fixing of the cutter main body are realized, and the operation is convenient and quick; the CBN half counter bore cutter has high overall structural strength, can be stably positioned and fixed through the cutter bar, is not easy to break due to external force in use, and is convenient for processing operation and use of the cutter.
Drawings
FIG. 1 is a schematic diagram of the front view of a CBN half counter bore cutter according to the present utility model.
FIG. 2 is a schematic side view of a CBN half counter bore tool of the present utility model.
Fig. 3 is an isometric view of the tool bar of the present utility model.
Fig. 4 is a schematic front view of the tool bar of the present utility model.
Fig. 5 is a schematic top view of the tool bar of the present utility model.
Fig. 6 is a right-side view of the tool bar of the present utility model.
FIG. 7 is a schematic cross-sectional view of the tool bar of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-7, a CBN half counter bore cutter is provided, wherein the whole cutter body 1 is diamond-shaped, a first half counter bore 2 and a second half counter bore 3 are respectively arranged on the left side surface and the right side surface of the cutter body 1, the first half counter bore 2 and the second half counter bore 3 are positioned at the center of the cutter body 1 and are not communicated, and the first half counter bore 2 and the second half counter bore 3 are circular holes or elliptical holes; the depth of the first half counter bore 2 and the second half counter bore 3 is smaller than 1/3 of the thickness of the cutter body 1 and larger than 1/4 of the thickness of the cutter body 1.
A cutter arbor for fix a CBN half counter bore cutter, it includes cutter arbor main part 4, cutter arbor main part 4 end connection has tool bit 5, tool bit 5 top is provided with cutter clamp plate 7, cutter clamp plate 7 pass through clamp plate screw 8 with tool bit 5 is connected, the recess of tool bit 5 tip is provided with cutter backing plate 6, cutter backing plate 6 pass through backing plate screw 9 with tool bit 5 is connected, CBN half counter bore cutter is arranged in on cutter backing plate 6, and through the bump plate 10 embedding that cutter clamp plate 7 bottom set up first half counter bore 2 or second half counter bore 3 are in order to fix cutter main part 1.
According to the CBN half counter bore cutter, the left side surface and the right side surface of the diamond cutter main body 1 are respectively provided with the first half counter bore 2 and the second half counter bore 3, the first half counter bore 2 and the second half counter bore 3 are positioned at the center of the cutter main body 1 and are not communicated, the depth of the first half counter bore is smaller than 1/3 of the thickness of the cutter main body 1 and larger than 1/4 of the thickness of the cutter main body 1, the center of the cutter main body 1 is kept with enough thickness, the structural strength of the cutter main body is ensured, and the center of the cutter main body is not easy to break under the action of external force when the cutter is used for processing; the first half counter bore 2 and the second half counter bore 3 are round holes or oval holes, so that obvious stress concentration is not easy to occur under the action of external force, and the cutter is further prevented from being broken from the center; the cutter main body 1 is arranged on the cutter backing plate 6 of the cutter bar, the convex plate 10 arranged at the bottom of the cutter pressing plate 7 is embedded into the first half counter bore 2 or the second half counter bore 3, and the cutter pressing plate 7 is tightly pressed against the cutter main body 1 by screwing the pressing plate screw 8, so that the positioning and fixing of the cutter main body 1 are realized, and the operation is convenient and quick; the CBN half counter bore cutter has high overall structural strength, can be stably positioned and fixed through the cutter bar, is not easy to break due to external force in use, and is convenient for processing operation and use of the cutter.
Example 2
As shown in fig. 1-7, a CBN half counter bore cutter is provided, wherein the whole cutter body 1 is diamond-shaped, a first half counter bore 2 and a second half counter bore 3 are respectively arranged on the left side surface and the right side surface of the cutter body 1, the first half counter bore 2 and the second half counter bore 3 are positioned at the center of the cutter body 1 and are not communicated, and the first half counter bore 2 and the second half counter bore 3 are circular holes or elliptical holes; the depth of the first half counter bore 2 and the second half counter bore 3 is smaller than 1/3 of the thickness of the cutter body 1 and larger than 1/4 of the thickness of the cutter body 1.
Further, the included angle of one group of adjacent sides of the diamond-shaped cutter body 1 is 80 degrees.
Further, the distance between two parallel sides of the diamond-shaped cutter body 1 is 12.7mm, four corners of the diamond-shaped cutter body 1 are arc corners, the radius of each corner is 0.4-1.2mm, the thickness of the cutter body 1 is 4-8mm, the depth of the first half counter bore 2 and the second half counter bore 3 is 0.9-2mm, and the diameter of the circular holes of the first half counter bore 2 and the second half counter bore 3 is 5-6mm.
Further, the radii of the four arc corners of the diamond shape of the cutter body 1 are 1.2mm, the thickness of the cutter body 1 is 6.35mm, the depths of the first half counter bore 2 and the second half counter bore 3 are 1.7mm, and the diameters of the round holes of the first half counter bore 2 and the second half counter bore 3 are 5.16mm.
A cutter arbor for fix a CBN half counter bore cutter, it includes cutter arbor main part 4, cutter arbor main part 4 end connection has tool bit 5, tool bit 5 top is provided with cutter clamp plate 7, cutter clamp plate 7 pass through clamp plate screw 8 with tool bit 5 is connected, the recess of tool bit 5 tip is provided with cutter backing plate 6, cutter backing plate 6 pass through backing plate screw 9 with tool bit 5 is connected, CBN half counter bore cutter is arranged in on cutter backing plate 6, and through the bump plate 10 embedding that cutter clamp plate 7 bottom set up first half counter bore 2 or second half counter bore 3 are in order to fix cutter main part 1.
According to the CBN half counter bore cutter, the left side surface and the right side surface of the diamond cutter main body 1 are respectively provided with the first half counter bore 2 and the second half counter bore 3, the first half counter bore 2 and the second half counter bore 3 are positioned at the center of the cutter main body 1 and are not communicated, the depth of the first half counter bore is smaller than 1/3 of the thickness of the cutter main body 1 and larger than 1/4 of the thickness of the cutter main body 1, the center of the cutter main body 1 is kept with enough thickness, the structural strength of the cutter main body is ensured, and the center of the cutter main body is not easy to break under the action of external force when the cutter is used for processing; the first half counter bore 2 and the second half counter bore 3 are round holes or oval holes, so that obvious stress concentration is not easy to occur under the action of external force, and the cutter is further prevented from being broken from the center; the cutter main body 1 is arranged on the cutter backing plate 6 of the cutter bar, the convex plate 10 arranged at the bottom of the cutter pressing plate 7 is embedded into the first half counter bore 2 or the second half counter bore 3, and the cutter pressing plate 7 is tightly pressed against the cutter main body 1 by screwing the pressing plate screw 8, so that the positioning and fixing of the cutter main body 1 are realized, and the operation is convenient and quick; the CBN half counter bore cutter has high overall structural strength, can be stably positioned and fixed through the cutter bar, is not easy to break due to external force in use, and is convenient for processing operation and use of the cutter.
Claims (5)
1. A CBN half counter bore cutter, characterized in that: the CBN half-counterbore cutter comprises a cutter main body (1) which is integrally diamond-shaped, a first half counterbore (2) and a second half counterbore (3) are respectively arranged on the left side surface and the right side surface of the cutter main body (1), the first half counterbore (2) and the second half counterbore (3) are positioned at the center of the cutter main body (1) and are not communicated, and the first half counterbore (2) and the second half counterbore (3) are round holes or oval holes; the depth of the first half counter bore (2) and the second half counter bore (3) is smaller than 1/3 of the thickness of the cutter body (1) and larger than 1/4 of the thickness of the cutter body (1).
2. A CBN half counter bore tool as claimed in claim 1, wherein: the included angle of one group of adjacent sides of the diamond-shaped cutter body (1) is 80 degrees.
3. A CBN half counter bore tool as claimed in claim 2, wherein: the distance between two parallel sides of the diamond-shaped cutter body (1) is 12.7mm, four corners of the diamond-shaped cutter body (1) are arc corners, the radius of each corner is 0.4-1.2mm, the thickness of the cutter body (1) is 4-8mm, the depth of the first half counter bore (2) and the second half counter bore (3) is 0.9-2mm, and the diameter of the circular hole of the first half counter bore (2) and the diameter of the circular hole of the second half counter bore (3) are 5-6mm.
4. A CBN half counter bore tool according to claim 3, characterized in that: the radius of four arc corners of the diamond-shaped cutter body (1) is 1.2mm, the thickness of the cutter body (1) is 6.35mm, the depth of the first half counter bore (2) and the second half counter bore (3) is 1.7mm, and the diameter of the circular holes of the first half counter bore (2) and the second half counter bore (3) is 5.16mm.
5. A tool bar for securing a CBN half counter bore tool as claimed in claim 1, wherein: the novel cutting tool comprises a tool bar main body (4), a tool bit (5) is connected to the end portion of the tool bar main body (4), a tool pressing plate (7) is arranged at the top of the tool bit (5), the tool pressing plate (7) is connected with the tool bit (5) through a pressing plate screw (8), a tool backing plate (6) is arranged at the lower concave portion of the end portion of the tool bit (5), the tool backing plate (6) is connected with the tool bit (5) through a backing plate screw (9), a CBN half counter bore tool is arranged on the tool backing plate (6), and a convex plate (10) arranged at the bottom of the tool pressing plate (7) is embedded into the first half counter bore (2) or the second half counter bore (3) to fix the tool main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223551723.XU CN219443479U (en) | 2022-12-30 | 2022-12-30 | CBN half counter bore cutter and cutter arbor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223551723.XU CN219443479U (en) | 2022-12-30 | 2022-12-30 | CBN half counter bore cutter and cutter arbor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219443479U true CN219443479U (en) | 2023-08-01 |
Family
ID=87420354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223551723.XU Active CN219443479U (en) | 2022-12-30 | 2022-12-30 | CBN half counter bore cutter and cutter arbor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219443479U (en) |
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2022
- 2022-12-30 CN CN202223551723.XU patent/CN219443479U/en active Active
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| GR01 | Patent grant |